Patent US2794146A successfully refreshed from Google Patents.
US2794146A
Expired / Lapsed
US
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Ultra-high frequency amplifying tube
Assignee: Thales SA
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Filing: 1950-02-16
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Granted: 1957-05-28
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Expires: 1970-02-16
Abstract
No abstract record available.
Inventors
- 👤 Warnecke Robert
- 👤 Kleen Wener
- 👤 Huber Harry
- 👤 Dohler Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:05
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/48; H01J25/42; H01J25/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511407A
Cited
US2651686A
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US2566087A
Cited
USRE23647E
Cited
US2541843A
Cited
US2652513A
Cited
US2531972A
Cited
US2585582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |